CVE-2026-50459
published 2026-07-14CVE-2026-50459: Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally.
PriorityP433high7CVSS 3.1
AVLACHPRNUIRSUCHIHAH
Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_version_21h2 | >= 10.0.19044.0 < 10.0.19044.7548 | 10.0.19044.7548 |
| microsoft | windows_10_version_22h2 | >= 10.0.19045.0 < 10.0.19045.7548 | 10.0.19045.7548 |
| microsoft | windows_11_version_24h2 | >= 10.0.26100.0 < 10.0.26100.8875 | 10.0.26100.8875 |
| microsoft | windows_11_version_25h2 | >= 10.0.26200.0 < 10.0.26200.8875 | 10.0.26200.8875 |
| microsoft | windows_11_version_26h1 | >= 10.0.28000.0 < 10.0.28000.2269 | 10.0.28000.2269 |
| microsoft | windows_server_2022 | >= 10.0.20348.0 < 10.0.20348.5386 | 10.0.20348.5386 |
| microsoft | windows_server_2025 | >= 10.0.26100.0 < 10.0.26100.33158 | 10.0.26100.33158 |
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No advisories linked to this vulnerability.
No detection rules found.
No public exploits indexed.
Rapid7
Patch Tuesday - July 2026
blogs_rapid7·2026-07-14·CVSS 9.6
CVE-2026-58617 [CRITICAL] Patch Tuesday - July 2026
Microsoft is publishing 622 vulnerabilities on July 2026 Patch Tuesday , including a record-breaking 416 Windows vulnerabilities. Microsoft is aware of exploitation in the wild for two of the vulnerabilities published today, both of which are listed on CISA KEV, as well as public disclosure for one other. As usual, browser vulns are not included in the Patch Tuesday count above. Rapid7 noted last month that Microsoft no longer enumerates Chromium CVEs in the Security Update Guide. However, Microsoft has now taken the pursuit of minimalism much further, since today’s Security Update Guide no longer lists out even Microsoft vulnerabilities! Instead, we now receive a summary table of vulnerability counts by product family, as well as a new slimline “Notable CVEs” section. All of this only ser
Sans Isc
Microsoft Patch Tuesday July 2026 - The AI Acopolypse is Here , (Tue, Jul 14th)
blogs_sans_isc·2026-07-14·CVSS 6.1
CVE-2026-56155 [MEDIUM] Microsoft Patch Tuesday July 2026 - The AI Acopolypse is Here , (Tue, Jul 14th)
Microsoft Patch Tuesday July 2026 - The AI Acopolypse is Here
Published: 2026-07-14. Last Updated: 2026-07-14 19:14:58 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
This patch Tuesday includes a staggering 622 vulnerabilities, not including another 427 vulnerabilities in Chromium, affecting Microsoft's Edge browser. 62 of the vulnerabilities are rated critical. One was disclosed before today, and two have already been exploited.
Given the large number of vulnerabilities, it is difficult to point out "noteworthy" issues.
Already exploited vulnerabilities:
CVE-2026-56155 : Active Directory Federation Services Elevation of Privilege Vulnerability. This is an important (not critical) vulnerablity.
CVE-2026-56164: Microsoft SharePoint Server Elevation of Privilege Vulnerability. Micr
Tenable
Microsoft’s July 2026 Patch Tuesday Addresses 569 CVEs (CVE-2026-56155, CVE-2026-56164)
blogs_tenable·2026-07-14·CVSS 7.8
CVE-2026-56155 [HIGH] Microsoft’s July 2026 Patch Tuesday Addresses 569 CVEs (CVE-2026-56155, CVE-2026-56164)
## Microsoft’s July 2026 Patch Tuesday Addresses 569 CVEs (CVE-2026-56155, CVE-2026-56164)
56 Critical
510 Important
3 Moderate
0 Low
Microsoft addresses 569 CVEs in the largest Patch Tuesday release yet. This month’s release includes three zero-days, two of which were exploited in the wild.
Microsoft patched 569 CVEs in its July 2026 Patch Tuesday release, with 56 rated critical, 510 rated as important, and 3 rated as moderate. This marks the largest Patch Tuesday release ever, crushing the previous record of 198 CVEs in June . Last week, Microsoft announced that its multi-model agentic scanning harness (MDASH) is being used to identify vulnerabilities faster and noted that “customers will see a higher volume of security updates included in each security release.”
This month’s upda
2026-07-14
Published